Lithium Fluoride Plano-convex Lens

Lithium fluoride plano-convex lenses have a plane and a convex surface, commonly used to change the shape and size of a beam of light. Applied in beam expansion, imaging, beam collimation, focusing collimation, beam collimation point light sources, etc. Lithium fluoride has a wide transmission band (110-6600nm) and high transmittance, making it particularly suitable for manufacturing infrared lenses and windows. At the same time, it also has excellent infrared characteristics. In the infrared band, especially in the mid to far infrared to long wave infrared band (such as 3-5 μ m and 8-14 μm), lithium fluoride has a high transmittance, so it is often used as a window material for infrared lasers and infrared night vision devices. It can be coated with MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom NIR, SWIR, SWIR, YAG-BBAR and other film systems.

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If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Dia(mm)	Focal Length(mm)	Center Thickness(mm)	Edge Thickness(mm)	Design Wavelength(μm)	Radius of Curvature(mm)	Surface Quality
	Screen Reset 2-100	Screen Reset 15-5000	Screen Reset 0.12-60	Screen Reset 0.12-60	Screen Reset Custom	Screen Reset Custom	Screen Reset 60-40
More+ Less	2-100	15-5000	0.12-60	0.12-60	Custom	Custom	60-40
Lithium Fluoride Planoconvex Lenses Number：PLi03- Dia(mm)：2-100 Focal Length(mm)：15-5000 Center Thickness(mm)：0.12-60 Edge Thickness(mm)：0.12-60 Design Wavelength(μm)：Custom Radius of Curvature(mm)：Custom Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Lithium Fluoride（LiF） Power@632.8nm：/ Irregularity@632.8nm：/ PV@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.11-7μm
Transmittance	>94.8%@0.6μm
Reflection Loss	5.2%@0.6μm(both surfaces)
Absorption Coefficienet	5.9×10-3@4.3μm
Structure	Cubic Crystal System
Cleavage Planes	<100>
Physical Properties
Density [g/cm3]	2.639
Melting Point [℃]	848
Thermal Conductivity [W/(m×K)]	11.3 @ 314K
Thermal Expansion [10-6/K]	37.0 @ 283K
Knoop Hardness [kg/mm2]	415
Specific Heat Capacity [J/(kg×K)]	1562
Dielectric Constant	7.33 @ 1 MHz
Young's Modulus (E) [GPa]	64.79
Shear Modulus(G) [GPa]	55.14
Bulk Modulus(K) [GPa]	62.03
Poisson Coefficient	0.22
Chemical Properties
Solubility / g/L	2.7g @ 20℃
Molecular Weight / g/mol	25.9394